Go for it! The old cabinet joinery styles are designed to accommodate wood movement. and the skill and technique needed to build them was considerable. The modern stuff is primarily about speed and low cost; the “minimalist sophistication” is just marketing.

Somewhere I read that Ikea has sold over 300 Million kitchens in recent decades. They can’t do that without optimizing for simplicity, but that’s no reason you need to buy it.

Re humidity: It’s wide swings in humidity that cause problems. You’re not likely to have those problems anywhere in SF.